Comment 3 for bug 1618879

Reviewed: https://review.openstack.org/364019
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=5b7c71a327d735134fa0eeb4427d0e1bd1f7d1e5
Submitter: Jenkins
Branch: master

commit 5b7c71a327d735134fa0eeb4427d0e1bd1f7d1e5
Author: gaozhengwei <email address hidden>
Date: Wed Aug 31 23:11:10 2016 +0800

    Preventing iptables rule to be thrashed

    When update meter label or rule, iptables_manager will update iptables
    rule in router's namespace. In order to, it will clean traffic counter
    number collected in interval time, the other iptables always trashing
    that will clean old iptalbes rule and generate new same significance
    iptables rule.

    Change-Id: Ide2b26c98587258175234acded38ce481b7e7f76
    Closes-Bug: #1618879